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Finding the Fourth Proportional to 15,901.22, 21,942.50 and 8,827.04

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Solution

The fourth proportional to 15,901.22, 21,942.50 and 8,827.04 is: 12,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.22 : 21,942.50 = 8,827.04 : x
  2. Step 2: Convert to fraction form
    15,901.22/21,942.50 = 8,827.04/x
  3. Step 3: Cross multiply
    15,901.22x = 21,942.50 × 8,827.04
  4. Step 4: Simplify right side
    15,901.22x = 193,687,325.20
  5. Step 5: Solve for x
    x = 193,687,325.20/15,901.22
  6. Step 6: Final answer
    x = 12,180.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.